Spark-catcher



T. L. SMITH AND W. J. VANLONE, E NEWARK, NEW JERSEY.

SPARK-CATCHB..

Specification of Letters I:Patent No. 798, dated June 20, 1838.

To all whom it may concern: l

Be it known that we, TIMOTHY L. SMITH and WILLIAM J. VANLONE, both of Newark,

,in the county of Essex and State of New' Jersey, have invented a new and Improved Spark-Catcher; Vand we do hereby declare that the following is a full and exact description thereof.

`The nature of the invention consists in attaching the apparatus hereinafter described to theordinary chimney of a locomotive or other boiler in which fire heat is used for thelpurpose of generating power.

To enable others skilled in the art to make and use our invention we will proceed to describe its construction and operation and first when used on locomotive boilers.

The chimney of a locomotive consists of `two pipes K, H,.E, E, and A, D, M, G.

tened to it `and kept in its position by a hinge or other convenient means at A and by a Vclasp and pin or other convenient means at I). This crown is composed of an inverted cone B, C, B, whose apexwhen in its proper position reaches just into the inner pipe and lies in the axis at the base of the cone the irregular figure, B. Y, B, Y, is fastened having a. shape substantially as represented in the drawing and suitable for the object hereinafter` described. The sides must have a flare that would cause them if produced, to intersect the outer pipe about 18 inches from the top.

On the inner pipe two inverted funnels, E, E, E, E, and E, F, E, F, are fastened, their sides being at an angle of about 45 degrecs with the said pipe. These angles may be altered according to the judgment of the builder for each different boiler; in the inside Vof the inner pipe is the ordinary tube N, K, I, of convenient size for connecting the outside pipe with the smoke box. There isa sliding or `other door L, G, in the outside, pipe -to enable the engineer toclear the tube or lower part of the pipe if it should become l clogged by the cinders or sparks. l

The operation of this invention is as follows: The smoke and sparks from theboiler and the steam from the engine pass up the ordinary pipe K, H, E, E, then striking against the sides of the cone B, C, B, C, they are forced around the curve B, Y, and take a downward direction, passing Abeneath the funnels E, E, F, F. Here the sparks from their greater gravity are separated from thesmoke and steam and fall to the bottom of the outside pipe whence they arevshaken down, by the motion of the machine, through the tube N, G, into the smoke box; the smoke and steam rise and pass out through the opening between the crown and the outside pipe. 4

When used on boilers other than locomotive and which have not the outside pipe A, D, G, M, that mustoe first attached to the ordinary chimney Vat Vany convenient height above the boiler ,-in other respects the apparatusis the saine.

If it is found that the draftof the boiler is injured by the apparatus the upper funnel E, E, E, E should be removed and that will remedy the difliculty.

What we claim as our invention and for which we desire va patent is- The combination of the apparatus above described, with a locomotive or other boiler. in which fire is used to generate power; we`

T. L. SMITH. WILLIAM J. VANLONE.

'Witnesses: Y

G. R. J. BoWDoIN, JOHN BRADY. 

